Federal Agencies
Digitization Guidelines Initiative

Home > Glossary > D > Dither

Term: Dither

Note:
 “Search Glossary” button searches only the glossary. Temporary note: search not enabled for two- and three-character terms; browse by alphabet.
 “Search“ button at the top right of the page searches the Web site, not the glossary.

Suggest a term

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Term: Dither

Definition:
Dither is intentionally applied noise that is intended to randomize quantization error. This can have the effect of preventing visible or audible patterns in images and sounds such as contouring that are more objectionable than random noise. Dither is routinely used in processing of both digital audio and digital images.
Category:
Image and Audio
Resource:
Dither (Wikipedia article)
http://en.wikipedia.org/wiki/Dither
See also: